Rt3 Upgrade 651 Na 663 Build 890 Can42 New
Suddenly, the screen turned a steady, calm blue. The idle of the engine, which had been a rough growl, smoothed into a surgical hum. The bridge was holding; the car was now processing data at ten times its original capacity.
: Minor updates to the user interface and graphics for a cleaner look. Pre-Upgrade Checklist rt3 upgrade 651 na 663 build 890 can42 new
RD4/RT3 Audio System Upgrade Reference String: rt3 upgrade 651 na 663 build 890 can42 new Suddenly, the screen turned a steady, calm blue
“Alright, old friend,” he whispered. “Let’s see if your brain can handle the new nerves.” : Minor updates to the user interface and
Always perform the update with the engine running to prevent "Eco Mode" from cutting power during the 10-15 minute installation process.
While version 6.51 was a solid foundation, the 6.63 build 890 update is considered the definitive "stable" version for CAN-bus vehicles. Here is why enthusiasts recommend the RT3 upgrade to 6.63 :

